321911-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 321911-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,9,1 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 321911-31:
(8*3)+(7*2)+(6*1)+(5*9)+(4*1)+(3*1)+(2*3)+(1*1)=103
103 % 10 = 3
So 321911-31-3 is a valid CAS Registry Number.
321911-31-3Relevant articles and documents
Vitamin D derivatives with cyclic substructures in the side chains, process and intermediate products for their production, and the use for the production of pharmaceutical agents
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, (2008/06/13)
The invention relates to vitamin D derivatives of general formula I, process for their production, intermediate products of the process as well as the use for the production of pharmaceutical agents.